Attachment foe



J. H. N. CHRISTIAN.

WATER HEATING AITACHMENT FOR SIOVES.

APPLICATION FILED MAY 8. I919 1,316,940. lulvntmlh'vpt. 23, I919.

JOHN H. N. CHRISTIAN 0F MONTREAL, QUEBEC, CANADA.

WATER-HEATING- ATTACHMENT FOR STOVES.

Specification of Letters Patent.

Patented Sept. 23, 1919.

Application filed May 8, 191$ Serial No. 295,617.

To all whom it may concern:

Be it known that 1, JOHN H. N. CHRIS- TIAN, a subject of the King of Great Britain, residing at 'Montreal, Province of Quebec, Canada, have invented certain new and use,-

7 ful Improvements in Water-Heating Attachments for Stoves; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same.

The present invention relates to water heating attachments for gas stoves and more particularly pertains to the detachable type of devices, wherein the heating element is designed to present a maximum surface to the direct flame ,of. the burner, while allowin for the perfect combustion of the gases. I'he principal object of the invention is to provide a greater heating area for the water coil and means for detachably supporting the same within the stove.

A further object of the invention is to provide a heating element, which may be adjusted to present a maximum surface to the flame of the burner.

With the above and other objects in view which will hereinafter appear as the description continues, the invention consists of the novel features of construction, combination and formation of parts as will be hereinafter fully described and particularly pointed out in the appended claims.

In the accompan ing drawln s has been shown a simple and preferred orm of the invention, it being, however, understood that no limitation is necessarily made to the recise structural details herein exhibited, but the right is hereby reserved to any changes, alterations or modifications to which recourse may be had that come wlthm the scope of the claims without departing from the spirit of the invention or sacrificing the efliciency of the same.

In the accompanying draw ngs: Figure 1 is a perspective view of my 1mproved device;

Fig 2 'is a sectional elevation of a gas range illustrating the application of my dep the "range p ate in section;

vice thereto;

' Fig. 3 is a cross sectlon of a portion of the front wall of the range and a coupling nut,

illustrating the attachment of one of the coil ends to the range; g.

Rig-.4 is a lan view of the C011 unit, with Fig. 5 is a sectional elevation of the coil unit on line 4-4 of Fig. 4; and

Fig. 6 is an elevational view of one of the strap elements.

Referrin now more particularly to the accompanying drawings wherein like and corresponding parts are designated by similar reference characters throughout the several views.

The well known type of water heaters, comprise devices which are operable independently of the gas range, having their own burners and regulating valves. In the present invention, the heatlng unit 1, comprises continuous coils preferably formed of copper tubing and having an inlet tube 2 and the outlet tube 3.

The gas range designated by the numeral 4 is of the usual construction, having upper and lower ovens 5 and 6 and a heating space 7 disposed therebetween. A burner 8 is mounted immediately above the lower oven 6 and its upper portions extend within the heating space 7. The burner 8 has a connection 9 extendmg through an opening in the front wall 10 of the range .4 and said connection carries the pilot 11.

The front wall 10, above the pilot 11, is likewise provided with two openings adapted for reception of the ends of the inlet and outlet tubes 2 and 3, which latter are exteriorly screw threaded at 12 and carry collars 13. The threaded ends of the inlet and outlet tubes 2 and 3 are passed through the front wall openings and the interiorly threaded nipples 14 are screwed upon the threaded ends and when tightened, serve to draw the said ends outwardly to bind the collars 13, against the inner surface of the front wall 10, of the range, In this manner the heating coil unit' is supported in a horizontal plane and disposed centrally of the heating space 7.

The nipples 14 are provided with exterior 'is afforded; To accomplish the above function Ispread apart the coils and for hold- 1 ing the latter'in adiusted or spreadpd'sition, I employ thestrap member 16, composed of two elements '17 and 18, having re 'stering slots 19, through which passes a ends of the strap elements 17 and 18 are 'bent over at 22 and embrace the outer coils It will thus be seenthat the coil tubes -whenadjusted in the mannerstated, will be disposed in staggered-"relation one with the other, as illustrated in Fig. 5, and will pre-' sent their greatest area to the direct flame of the urner, while allowing for the perfect combustion of the gases.

the range, by unscrewing the nipples 14,

I likewise adjustment of the coils may be accomplished in the same manner.

' In, the useofmy improved heating de-' vice a continuous supply-of hot -water is maintained-and the use of a separate heating plant for the heating of water is obviated. I

Having thus "fully described my inven-v tion, what I- claim as new and desire to secure by Letters Patent is: v i

1. A water heating attachment for gas stoves, comprising a coil element arranged for connection to a suitable water supply and outlet, said coil element adapted for olt 20 carrying a nut 21. The outer position within ,the heating space of the range and disposed parallel with the burner,

-means for supporting said coils in position,

and means ,for adjusting said coil element to present a maximum heatingsurface to the burner. I

2-. A water heating attachment for gas stoves comprising a coil having water 1nlet and outlet tubes, said tubes formed with collars and having their-ends screw threaded, the said-threaded ends adapted for projection through openings in the front wall of the stove, nipples arranged on the said ends, for drawing the said collars into en,- ga'gement with the stove wall, for holding said coil in a horizontal plane with the'\ 5'5,

heating space of the stove, the said 'coil tubes being transversely ad ustable to ,pre-

sent a maximum heating surface to the flame of the stove burner. r f

3. A water heating attachment for gas stoves comprising a coil having water inlet f and outlet tubes, saidtubes formed with The device may be readlly removed from jection through openings in the front wall of the stove,-n'ipples arranged on the said ends, for drawing the saidcollars into'en- .gagement with, the stove wall, for holding said coil in a horizontal plane with the heat: ingspace of the stove, the said 0011 tubes being transversely adjustable to present a maximumheating surface to the flame of the stove burner, and strap elements for holding said tubes in adjusted position.

In witness whereof I have hereunto set my hand.

' JOHN H; N. CHRISTIAN. 

